I am a 28 year old male. I had urine infection in early january, it made me urinate very frequently, had fever. I went to a doctor, urine examination showed bacteria but urine culture didn't detect anything. The doctor gave antibiotics, etc and I got better. But after I finished the prescription, within a week I got frequent urination again with pain in lower abdomen. I again went to the doctor, after urine tests I had e-coli infection. I am on amikacin injection and feel normal, no symptoms. The doctor also prescribed ultrasound, everything was normal but I had significant urine retention in the report (no prostate issues, no urinary tract abnormalities detected in ultrasound), the doctor prescribed urimax tablets. Nowadays, I drink around 3.5-4 litres of water to avoid infection but I feel less urge to urinate, when I go, my urine stream slows down a bit early, I also have to wait longer in the bathroom to empty as much as I can. How to correct this urine retention problem? Is there another disease here? Does exercise help?